Overlaying on video

[Roger Eller]

Will there be a similar capability to allow objects (buttons and fields) to
overlay a browser widget, which might also be displaying a video?  I
believe there is a need to make this possible for any situation.

~Roger


On Mon, Mar 27, 2017 at 8:47 AM, panagiotis merakos via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Hi all,
>
> Before LC 8.1.0, one could put other objects on top of the player object,
> if alwaysBuffer==true. This has broken in LC 8.1.0+.
>
> A workaround is described in this bug report:
>
> http://quality.livecode.com/show_bug.cgi?id=19444
>
> Best,
> Panos
> --
>
> On Mon, Mar 27, 2017 at 1:35 PM, Ben Rubinstein via use-livecode <
> use-livecode at lists.runrev.com> wrote:
>
> > Hi Rick
> >
> > Thanks for your reply.
> >
> > > I think once a movie starts playing other LC messages don’t
> > > have time to be sent. The video just takes over because
> > > it’s showing each frame quickly so your eye tells you
> > > it’s a movie.
> >
> > I don't think that's it. I've had time codes displays running before,
> > achieved in this way, so something that normally works, doesn't. I
> haven't
> > worked out if this is an issue with 8.1.3 or another side effect of the
> > particular movie. Or just that working late on a small screen, I made
> some
> > other stupid mistake.
> >
> > > One solution I had to use in the past to make a decent
> > > animation was to break the movie into each frame and
> > > then put each frame onto each card.
> >
> > I took a similar approach for now - rather than playing the movie and
> then
> > catching the currenttime, I used my timer to keep setting the current
> time,
> > moving it on a frame at a time (in fact for now I wanted to export a
> > timelapse of the movie anyway, so was happy to jump it along
> half-a-second
> > at a time). But in my ideal world I'd have this working interactively,
> > including allowing the user to scrub the movie to a different time and
> have
> > the data graphics update as they did.
> >
> > > I tried importing a Quicktime movie which had the .mov suffix into LC.
> > > I put a graphic on top of the movie and when I went to play the movie
> > > the movie put itself on top of the graphic.  So what to I need to do to
> > > recreate your solution?
> >
> > That's what I don't know yet! Obviously it's not enough that it's a .mov
> > instead of a .mp4; when I exported it, the movie also changed codec,
> > resolution, framerate... (partly because I was in a hurry so I decided to
> > work with a smaller lighter version to make progress). I'll need to try
> > some experiments with changing fewer attributes to find out which is the
> > crucial one.
> >
> > What are the characteristics of the movie you tried it with, that didn't
> > work?
> >
> > Ben
> >
> >
> >
> > On 27/03/2017 01:30, Rick Harrison via use-livecode wrote:
> >
> >>
> >> Hi Ben,
> >>
> >> To try to answer the second part of your question first.
> >> I think once a movie starts playing other LC messages don’t
> >> have time to be sent. The video just takes over because
> >> it’s showing each frame quickly so your eye tells you
> >> it’s a movie.
> >>
> >> One solution I had to use in the past to make a decent
> >> animation was to break the movie into each frame and
> >> then put each frame onto each card.  I had a short
> >> movie so it ended up being 254 cards.  It was for iOS
> >> so I needed to optimize for a cell phone processor.
> >> Then I was able to have a graphic which appeared
> >> on every card move on top of the changing cards.
> >> So my animated character was able to move around
> >> freely on top of a video background.  I was able to
> >> adjust the timing of the loops so it looked pretty good.
> >>
> >> Regarding the first part of your message:
> >> I’m trying to duplicate some of your experience here.
> >>
> >> Eventually I discovered by accident that this only applies to some
> >>> videos. For now, I got the job I needed to do done by rendering the
> >>> original .mp4 into a .mov with QuicktimePlayer's default settings; I
> >>> haven't had time to establish what the crucial factors are. Is this
> >>> known/documented anywhere?
> >>>
> >>
> >> I tried importing a Quicktime movie which had the .mov suffix into LC.
> >> I put a graphic on top of the movie and when I went to play the movie
> >> the movie put itself on top of the graphic.  So what to I need to do to
> >> recreate your solution?
> >>
> >> Thanks,
> >>
> >> Rick
> >>
> >>
> >>
> >>
> >> On Mar 26, 2017, at 6:54 PM, Ben Rubinstein via use-livecode <
> >>> use-livecode at lists.runrev.com> wrote:
> >>>
> >>> I'm trying to overlay some graphics on a video, and hit a couple of
> >>> problems.
> >>>
> >>> The first, which drove me somewhat mad until I found an out, was that
> >>> the video was always displayed on top of other LC elements - graphics,
> >>> fields. This is using a player object; I found that the controller
> would be
> >>> rendered correctly layered among other objects, and indeed would obey
> >>> blending levels; and occasionally in tool mode the video frame would
> also;
> >>> but once I switched back to browse mode and played the video, it
> invariably
> >>> displayed on top of everything else, at 100% opacity. Toggling the
> "buffer"
> >>> property did not appear to make a difference.
> >>>
> >>> Eventually I discovered by accident that this only applies to some
> >>> videos. For now, I got the job I needed to do done by rendering the
> >>> original .mp4 into a .mov with QuicktimePlayer's default settings; I
> >>> haven't had time to establish what the crucial factors are. Is this
> >>> known/documented anywhere?
> >>>
> >>> The second problem - which I also found frustrating because I'm sure
> >>> I've done something similar before without this arising - was in
> triggering
> >>> the updates to my overlay graphics. I thought that I could have a timer
> >>> sending a regular message to my code which would check the time of the
> >>> movie, and adjust graphics appropriately. The code worked but I only
> saw an
> >>> update twice; when the movie started, and when it stopped. As far as I
> >>> could tell this wasn't an issue about the screen not updating; but
> that the
> >>> message genuinely wasn't sent while the movie was playing. Again, is
> this a
> >>> known issue? Or do others think this should work, and I was just doing
> >>> something wrong?
> >>>
> >>> TIA,
> >>>
> >>> Ben
> >>>
> >>
> > _______________________________________________
> > use-livecode mailing list
> > use-livecode at lists.runrev.com
> > Please visit this url to subscribe, unsubscribe and manage your
> > subscription preferences:
> > http://lists.runrev.com/mailman/listinfo/use-livecode
> >
> _______________________________________________
> use-livecode mailing list
> use-livecode at lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-livecode
>